
#列表套元组
list2 = [[3, 4, 2, 1],(1,2) ,[2,3,4,5,1,1]]
a,b,c=list2   #拆包  同样适合嵌套
print(a)
print(b)
print(c)
# #print(list2)
# for a in list2:
#     for b in a:
#         print(b,end=" ")
#     print(a)
